fix raw mode CRLF bug in a cleaner and hopefully more robust way

Author: alexch

lib/rerun/runner.rb

@@ -229,12 +229,14 @@ def say msg
     def key_pressed
       begin
         # this "raw input" nonsense is because unix likes waiting for linefeeds before sending stdin
-        system("stty raw") # turn raw input on
+
+        # 'raw' means turn raw input on
 
         # restore proper output newline handling -- see stty.rb and "man stty" and /usr/include/sys/termios.h
         # looks like "raw" flips off the OPOST bit 0x00000001 /* enable following output processing */
         # which disables #define ONLCR		0x00000002	/* map NL to CR-NL (ala CRMOD) */
-        system("stty gfmt1:oflag=3")
+        # so this sets it back on again since all we care about is raw input, not raw output
+        system("stty raw opost")
 
         c = nil
         if $stdin.ready?

rerun.gemspec

@@ -3,7 +3,7 @@ $spec = Gem::Specification.new do |s|
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
 
   s.name = 'rerun'
-  s.version = '0.6.4'
+  s.version = '0.6.5'
 
   s.description = "Restarts your app when a file changes"
   s.summary     = "Launches an app, and restarts it whenever the filesystem changes."

stty.rb

@@ -8,7 +8,6 @@ def tty
   stty.split(':')
 end
 
-
 def tty_setting name
   tty.grep(/^#{name}/).first.split('=').last
 end
@@ -18,29 +17,42 @@ def oflag
 end
 
 normal = tty
+
 `stty raw`
 raw = tty
+
 `stty -raw`
-post_raw = tty
-assert { post_raw == normal }
+minus_raw = tty
+assert { minus_raw == normal }
+
+`stty raw opost`
+raw_opost = tty
 
 d { raw - normal }
 d { normal - raw }
+d { normal - raw_opost }
 
 puts "== normal"
 # d { tty }
 d{oflag}
 
 def check setting
-  `stty gfmt1:#{setting}`
+  `stty #{setting}`
   puts "testing #{setting}:\nline\nline"
+  print "\r\n"
 end
 
-puts "== raw"
-`stty raw`
-puts "testing\nraw\nmode"
+check "raw"
+
+check "-raw"
+
+check "raw opost"
+
+check "-raw"
+
+check "raw gfmt1:oflag=3"
 
-check "oflag=3"
-check "lflag=200005cb"
-check "iflag=2b02"
+# check "oflag=3"
+# check "lflag=200005cb"
+# check "iflag=2b02"
 `stty -raw`